JSFiddle - React, Tailwind, and code Playground
HTML
<table>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
CSS
table{
counter-reset:more 1;
}
td{
width:50px;
height:50px;
border:1px solid #369;
}
tr:nth-child(n+3):nth-last-child(n+3) td:first-child{
color:#fff;
background:#41ba5c;
}
tr:nth-child(n+3):nth-last-child(n+3) td:first-child:before{
counter-increment:more;
content:counter(more);
}